The defenders did have some countermeasures, however. They fired spreads of torpedoes that exploded and filled the space around the station with clouds of reflective metallic particles. Informally called angel dust, it was designed to diffuse and reflect the incoming lasers, reducing their effectiveness against the target. Highly effective when properly targeted, it was a difficult system to use well; the timing and positioning had to be perfect.
Garret was pleased so far. The station didn't have heavy laser batteries, only smaller anti-missile units, so the enemy's close range fire went unanswered. Still, they had hit the enemy hard with their missile volley and, with the damage done by the mines, the attacking task force was down to 30% effectiveness. Even more importantly, it would take them 5 or 6 days just to decelerate. It would be at least a week before they were again a threat. He had the station fire another volley after then as they passed, but it would take those missiles, fired from a stationary platform with no intrinsic velocity, a long time to accelerate and catch the enemy force. It would at least give the enemy something to think about as they decelerated and attempted to re-vector back toward the battle zone.
The Western Alliance fleet, positioned for missile defense around the station, was not formed to fire at the enemy task force as it zipped by, but Garret wasn't concerned. He wanted to preserve his supply of missiles anyway; the enemy battleline would be coming.
With the initial attack on the station repulsed, the admiral quickly shifted his attention to the inevitable second assault. He barked out commands, ordering his group leaders to get their ships moving. The enemy's next wave, briefed by spy drones accompanying the first group, would know his deployments, and he was a sitting duck if he remained where he was. His ships were at a dead stop and tied into the station's defensive network - positioned to intercept missiles, not engage enemy capital ships. Now he needed to build some velocity, and he needed to do it quickly.
Fusion reactors ran at full capacity and beyond, as his battleships and support vessels applied maximum thrust. The crews, wearing protective pressure suits like Garret’s own, were strapped into their acceleration couches as their ships' AIs executed full thrust burns, straining to get the fleet into combat formation as quickly as possible. Within moments, the slowest ships in the fleet were accelerating at 12g, and the newer vessels at 16-18, the maximum their drug and technology-assisted human crews could endure for any sustained period.
Attack boats and escort vessels clustered around the capital ships, taking up their support positions. When they were patrolling the frontier or scouting deep space the smaller ships had many uses, but in a major battle they had one duty – support the capital ships.
The vessels of the fleet were executing controlled burns to build velocity, cutting thrust at precise intervals so the crews could physically recover from massive g forces and analyze incoming data. While enduring the pressures exerted by maximum acceleration, even experienced crews could do little but lie motionless on their couches.
"Admiral…energy spike at the Alpha Cephei warp gate. Inbound transit imminent." Lieutenant Simon was young to be communications officer to a full admiral, but she was a rock. The biggest fleet ever assembled was probably going to come streaming through that gate in a few seconds, but her voice was calm, steady.
"Acknowledged." Here they come, Garret thought, then…no, that data's more than an hour old. They are already here. He looked at the plot of the fleet on the main screen and sighed quietly. A lot of his men and women were going to die over the next couple days. "Nelson, engage."
"Engaged, admiral." The voice was emotionless, tinny. The naval AIs didn't have the vaguely creepy soothing voices the Marine versions did, though the tradition of naming the things was shared. Garret's choice was painfully unoriginal. There were dozens of Nelsons, as well as Halseys, Porters, and other wet navy greats among the quasi-sentient artificial intelligence units in the service. "Enemy units now entering system, inbound at .06c and decelerating."
Garret leaned back in his command chair. His units were currently accelerating at 6g, which was uncomfortable but bearable as long as he remained seated. "I want breakdowns as soon as they are available, Nelson. Raw ship totals and battlegroup formations."
"Yes, Admiral." The naval AIs also lacked the more creative personalities of their Marine counterparts. The navy thought that smartass computers were beneath their dignity.
Garret watched as the plotting screen split into two sections, one showing his own fleet at reduced size and the other the enemy ships emerging into the system, the data transmitted by hundreds of small scanners deployed around the gate. Ship after ship came through, and they kept coming long after they outnumbered the waiting defenders.
"Nelson, project ETA to initial engagement range."
Garret had his AI piped into his headset. "Assuming you elect to continue on our present acceleration plan and the enemy forces decelerate at a constant rate, initial engagement is projected in 30 to 33 hours. I shall maintain an updated estimate based on noted changes in deployments."
More than a day, Garret thought. His own estimate had been pretty close to the computer-generated one, though of course those numbers could change if he or the enemy commander modified their maneuvering.
Naval battles are, in many ways, endurance contests. The vast distance involved creates considerable lag times between points of engagement. When the fleets enter each other's ranges there is an exchange of fire. Ships are battered by nuclear explosions and sliced apart by close-range lasers. Crews die, victims of explosions, radiation, decompression.
Then, unless the fleets are on parallel courses, the surviving ships pass their adversaries and move out of effective range until they can exert enough thrust to re-vector back toward the enemy or attempt to disengage and escape to a friendly warp gate. Hours, even days, can pass between instances of engagement.
Garret's plan was unconventional and therefore unexpected. His ships accelerated at full blast 60% of the way to the projected meeting point, then the capital ships launched their bombers and the fleet itself braked hard, decelerating rapidly while the strike wings blasted toward the enemy. The bomber squadrons accelerated at full thrust, adding to the intrinsic velocity imparted by their launch platforms. Garret wanted his bombers going in hard and fast, so he launched them before he slowed the battleships carrying them. This meant his strike would go in well before his missile volleys, which was counter to the "book." But then, most of what Augustus Garret did was unconventional.
"Admiral, your bio-readings indicate considerable fatigue and low blood sugar. It has been seven hours since you have eaten. I have a stimulant prepared, but I would recommend postponing injection until enemy contact is more imminent." Garret's AI monitored him constantly, working to keep him informed and functioning at peak efficiency for as long as he needed to be. Sometimes that made it a nag, but it was usually right as well.
The admiral didn't answer, but he grabbed a nutrition bar from the small compartment in the command chair and nibbled at it. The high-calorie, supplement-rich bars were designed for crews to eat during sustained combat conditions. He made a face as he took his first bite. God, I hate these things, he thought. Better than what the Marines get, at least. Ground assault units took meals intravenously for 36 hours prior to a drop. Vomiting in your armor during a rough landing would not enhance your combat efficiency.
The ships were at battlestations, but the crews alternated slumber periods during the approach phase. It's not easy to rest being crushed to death in an acceleration couch with battle imminent, but they did the best they could; if you're tired enough you can sleep anywhere. When they entered the battle zone, the whole crew would be pumped up on stimulants anyway.